Project Sync: The journey to sample-perfect audio/video sync with WebCodecs
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Ranked by a public rubric, not by votes: what a comment adds counts, not who wrote it. How comments are ranked · Comment rules
Summary
Vanilagy's "Project Sync" post on the Mediabunny blog (Nov 3, 2026) explains why audio transcoded through WebCodecs drifts out of sync with video. Encoders like Apple's AAC add priming delay (2112 samples in one test) that WebCodecs does not report, so each roundtrip lags further behind.